The one shopping experience that is not child's play to the singer-actress?

"Shopping for a bikini for me is like it would be for a lot of women in America: hell on Earth," says Chenoweth, who showed off her slammin' figure in a Victoria's Secret bikini in the latest issue of PEOPLE. "I'm a 32C on top. I have curves! I'm not a stick, so the wrong suit can make me look squatty. I have to watch that."

No matter what she's wearing, there's always one accessory to all her outfits: high heels.

"Being petite, a little goes a long way," she says. "I came out of the womb with heels. I will die with them on. I also like wearing heels in a bikini!"

To see Kristen Chenoweth's hot bikini body, check out PEOPLE's Most Amazing Bodies issue on newsstands this week